Copy letter from Robert William Frederick Harrison to J H Orton, The Laboratory, Citadel Hill, Plymouth 'With reference to your letter of the 5th instant, in which you ask for permission to use parts of certain figures published in the Proceedings of the Royal Society, I beg to inform you that your request shall be submitted to the Council. I am authorised, however, to give you the consent of the Council in anticipation.' 9 February 1912